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Finding the Fourth Proportional to 18,351,978.30, 27,527,967.45 and 6,384,714.30

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Solution

The fourth proportional to 18,351,978.30, 27,527,967.45 and 6,384,714.30 is: 9,577,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351,978.30 : 27,527,967.45 = 6,384,714.30 : x
  2. Step 2: Convert to fraction form
    18,351,978.30/27,527,967.45 = 6,384,714.30/x
  3. Step 3: Cross multiply
    18,351,978.30x = 27,527,967.45 × 6,384,714.30
  4. Step 4: Simplify right side
    18,351,978.30x = 175,758,207,427,949.53
  5. Step 5: Solve for x
    x = 175,758,207,427,949.53/18,351,978.30
  6. Step 6: Final answer
    x = 9,577,071.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.